Whales 'whisper' to evade predators

By News on the Net -- Telegraph —— Bio and Archives April 26, 2017

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Humpback whales are renown for their loud, haunting songs, but new research has discovered the huge marine mammals are able to “whisper” as well. Scientists found that baby humpbacks avoid the attention of predators while communicating with their mothers by using intimate grunts and squeaks. -- More...